Might be Camellia Angela Cocchi, see below

https://www.paramountplants.co.uk/plant/camelliangelco/camellia-angela-cocchi.html

The foliage on yours is looking somewhat yellow - if its not been fertilized in the last year or so, apply some now, preferably one specially designed for acid loving plants. Otherwise, use some Growmore to feed it and apply Sequestrene iron tonic using a watering can around the base of the plant.